Bat box



FIG. 1 is a top view of a bat box showing my new design;

FIG. 2 is a front view thereof;

FIG. 3 is a side view thereof; and,

FIG. 4 is a bottom view thereof.

The broken lines in FIGS. 2 and 3 are for illustrative purposes only and form no part of the claimed design. 

The ornamental design for a bat box, as shown and described. 